At this period the conception of a witch is radically different from that which was prevalent in the era prior to this one. The popular belief of the witchcraft ages, a belief sanctioned by most of the learned men of the time, was that the earth swarmed with millions upon millions of demons. They multiplied by reproduction in the usual way, by the accession of the souls of wicked men, of women dying in childbirth, of children still-born, of men killed in duels. The air was filled with them, and one was always in danger of inspiring them with the air, of swallowing them in food and drink. Most Christian writers and legendists said that there were so many of them they could not be counted, but Wierus took a census of them and reported that there were only 7,505,926 divided into seventy-two companies, each commanded by a captain or prince. They could make themselves hideous, or beautiful, as suited their purposes, and assume any shape. While capable of appearing at any time, they preferred the night between Friday and Saturday. Any human being who gave up to them his immortal soul could command their services for a certain time. Occasionally general conferences took place, at the pleasure of Satan, which were attended by all the demons and all the witches. "These 'sabbaths' were held on the Brocken or other high mountain. Upon the spot where they met, nothing would ever grow afterwards, as their hot feet burnt all the fecundity out of the soil. In France, England, and the American Colonies, it was supposed that witches made their trips on broomsticks; in Spain and Italy it was believed that they twirled on the back of the Devil himself, who, for the occasion, transformed himself into male goat. On no account would a witch, when starting for a sabbath, go out through the open door or window; she would pass through the keyhole or up the chimney. While they were gone, inferior demons assumed their shape, and lay in their beds, feigning illness. Assembled on the Brocken, the Devil, as a double-headed goat, took his seat on the throne. His subjects paid their respects to him, kissing his posterior face. With a master of ceremonies appointed for the occasion, he made a personal examination of all the wizards and witches, to see if they had the secret mark about them by which they were stamped as the Devil's own. This mark was always insensible to pain, and it was the sure proof of witchery when found by the inquisitor. Any witches found by the Devil not so marked received the mark from him then and there, also a nickname. Then they all sang and danced furiously. If a stranger came to be admitted, silence reigned while he denied his salvation, spat upon the Bible, kissed the Devil, and swore absolute obedience to him. Singing and dancing was resumed, a mythical formula being used in the singing. When tired, they sat down and told of their evil deeds; those who had not been bad enough were scourged by Satan himself with thorns